1、CCIR RECMN*b49-3 92 m 4855232 0539574 35 m Rw. 649-1 RECOMMENDATION 649-1 5 MEASURING METHODS FOR ANALOGUE AUDIO TAPE RECORDINGS (Question 52/10) (1986-1992) The CCIR, considering a) that the international exchang of monophonic z d st reophonic re orded i alogue sound programmes between broadcasting
2、 organizations may be made by means of magnetic recordings on tape, as stipulated in Recommendation 407; b) that measuring methods for the characteristics of magnetic tape analogue recordings and magnetic tape recording equipment are specified in EC Publication 94-3, “Methods of measuring the charac
3、teristics of recording and reproducing equipment for sound on magnetic tape” and in its Amendment No. 1; c) in 0 b); that EC Publication 94-2, “Calibration tapes” specifies the calibration tapes to be used for the measurements d) measurement of speed fluctuations in sound recording and reproducing e
4、quipment”; that the method of measurement of flutter and wow is specified in IEC Publication 386, “Method of e) the contents of piion 16, recommends 1. that the method of measurement for the characteristics of qalogue audio tape recording and reproduction equipment used for the exchanges of sound pr
5、ogrammes on rape should conform with IEC Publication 94-3, and its Amendment No. 1; and that the appropriate calibration tapes indicated in IEC Publication 94-2, “Calibration tapa” should be used for such measurements; 2. that the method of measurement of flutter and wow should conform to IEC Publication 386.
